This is Waveshare Industrial 8-Channel Relay Module for Raspberry Pi Pico. It features embedded protection circuits such as Power Supply Isolation & Photocoupler Isolation. It also comes with an ABS enclosure.

Features:

1. Onboard unip power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
2. Onboard photocoupler isolation, prevent interference from external high-voltage circuit connected to the relay
3. High-quality relay, contact rating: 10A 250V AC or 10A 30V DC
4. ABS protection enclosure with rail-mount support, easy to install, safe to use
5. Breakout USB port and BOOT pin, make it easy to debug without disassembling the enclosure
6. PWR indicator, RGB LED, and passive buzzer outside the enclosure
7. Comes with development resources and manual (Raspberry Pi Pico C/C++ and MicroPython examples)

Package Includes:

1 x Waveshare Industrial 8-Channel Relay Module for Raspberry Pi Pico, Multi-Protection